Island



(No Model.)

2 sheetssheet 1.

N. M. "SAATL MECHANICAL MOVEMENT.

2 sheets-sheet z.

(No Model.)

N.` 1v1. SAATI. MEGHANIGAL MVHXMEINT.v

Patented Dec. l12, 1893.

Hva. 7 mm, ,pf me m lvanm 757% .fJaJ.

ms NATIONAL LrrHoenAPmuo coMPANY.

ing lever, and an eccentric or crank, t0 cause' lever with to, ashereinafter fully set forth.

form of my lnvention.

section taken inthe line 5, 5, of Fig. 4. Fig.

adapted to impart a movement to the toothed wheel, in a reversedirection from that shown in Fig. 1. ing a crown wheel, and theengaginglever arranged for operation at vthe inner side of the teeth ofthe wheel. tical section taken in the line 9, 9, of Fig. 8. Fig. 10,represents an under view of the crown resents a vertical section takenin the line 11 of Fig. 8. Fig. 12, representsasectional view as in Fig.1l, showing a plurality of toothed wheels, eccentrics, and engaginglevers, upon the same axis.

N OVMAN M. YSAATI, OF PROVIDENCE,

RHODE ISLAND, TENTH TO WILLIAM A. WALTON,

MECHANICALIVIOVEMENT.`

ASSIGN OR OF ONE- OF SAME PLACE.

SPECIFICATION forming partl of Letters Patent No. 510,557, datedDecember 12, 1893.

Application inea september 21. 1892 To @ZZ whom t Be it known mayconcern: l that I, NowMAN M. SAATI, a

invented a new and useful Mechanical Movement, of which the following isa specification.

My invention relates to a mechanical movement adapted for reducing therate of rotation in mechanical devices, and it consists in a othed wheelactuated by means of a branchthe alternate'engagement of the spurs ofthe the teeth at the opposite edges 4of the Wheel, to impart a rotarymovement there- Figure 1, represents a top view showing one Fig. 2,represents an under view of the same. Fig. 3, represents a verticalsection taken in the line 3, 3, of Fig. 1. Fig. 4, represents a top Viewshowing a modification. Fig. 5, represents a vertical 6, represents an.under view of the same. Fig. 7, represents a topview of a compoundlever,

Fig. 8, represents a top view, show- Fig. 9, represents a verwheel andthe branching levers.' Fig. 11, rep- In the accompanying drawings, Figs.1, 2

a toothed' any desirable number of teeth arengaging spurs b, h', adaptedthe teeth c of the wheel. The

fulcrum stud e, and with the Serial No. 446,

489. (No model.)

and between the eccentric B and leve the Wheel C,

attached to a supporting plate F.

JWhen the shaft A is rotated in the direcby the arrow in Fig. 1, thediarranged opposite engaging spurs b, h', will be caused to move in thec tion shown metrically a g, toI alternate engagement ment With theteeth of the wh the spur b is in engagement of the wheel,

to in the direction of the a the continued rotation posite spur mentwith the in the direction with the r D, and

is placed the bridge E, which is ircles g,

and disengageeelC; and when 6o tooth o,

movement will be imparted thereh will be brought into of the arrow thusing motion to the wheel C in the sam tion as befo site' to that of theshaft A; and the co rotation of the shaft A, will canse the rrow andupon of the shaft A the opengagetooth @,which Nillbe moved imparte direcwhich direction will be oppontinued 7o continued rotation of the wheelC, tooth by tooth, 0'5"/ and upon the reversal of th ment of the mentwill be i e rotary moveshaft A, a reverse rotary moveone or the otherspu mparted to the toothed Wheel rs b, h',

times" in engagement with a wheel, so that the wheel cannot skip a toothand thus with uncertainty.

Whenever it is tion of the shaft A same directi ment lever D may be onwith each other, the

operate desired to cause the rotaand the wheel C in the engagemade ofcompound con struction, as shown by D in Fig. 7, so as to reverse theengaging movementof b, b', and th ment of the us cause the same r wheelC, as before; and

case the branching arms, ot, a, are p with the guide slot d and fulcrumstud e, and 9o with the circular socket z', to which is the leverj,

eccentric B, adapted to receive the fulc having a head when the shaft Ais turned in the d of the arrow, the reverse engagemen studs b, h',struction of ver D, or D teeth of the the studs otary movein thisrovided jointed y f adapted to fit the and provided with the slot 1c rumstud m, so that,

irection t of the by reason of the jointed conthe lever D', will drivethe wheel wheel, that when the ecc with lthe shaft A. ,of the branchingle- Ico are so arranged relatively tothe entric B space c between is inthe position shown, the stud b will be in full engagement between theadjoining teeth at the side of the wheel, while the stud b is heldopposite the point of a tooth, at the opposite side of the wheel.

Another arrangement for driving the shaft A, and the wheel C, in thesame direction, is shown in Figs. 4c, 5, and 6, and in this case thelever D is also shown as adapted to make twice the ordinary number ofvibrations, so that upon each complete vibration of the said lever, thewheel will be moved through the space of one-half of a tooth, instead ofa whole tooth as before. The eccentric B instead of being placed uponthe shaft A, is placed upon a driving shaft A', and at the side of theeccentric B is placed the pinion F, which engages with the gear G oftwice its number of teeth, upon the shaft A. The eccentric B will thusbe caused to revolve with twice the rapidity of the shaft A, and willalso revolve in the reverse direction to that of the said shaft; and inorder to move the wheel C for the space of one-half a tooth, at eachcomplete vibration of the lever D, the engaging studs b,b', instead otbeing pointed as shown in Fig. 1, are provided with a notch o, adaptedto receive a tooth c, of the wheel, the said studs being at the sametime of the proper thickness to enter the spaces c between the teeth,and when the shaft A is rotated, the stud b will first receive the topof a tooth c, and at the next vibration enter the the teeth, and so on,alternately, while the opposite stud b' will enter the space c', and atthe next vibration receive the top of a tooth c, and so on, alternately,requiring two full vibrations ot the lever D, to produce a movement ofone tooth in the wheel C.

Another modication of my invention is shown in Figs. S to 11, inclusive,in which a crown wheel C', is employed to turn loosely upon the shaft A,the eccentric B being attached to the said shaft; and in this case, thebranching lever D may be employed to operate upon the inner side of theteeth c of the wheel C', the said lever being made to fit the eccentricB, and provided with the guide slot d adapted to receive the fulcrumstud e, and the branching arms a, a,

of the lever D are provided with the tapering spurs b, b', adapted toenter the spaces c' between the teeth ot the wheel C', to cause therevolution of the` wheel, by the alternate engagement of the said studswith the teeth c at the opposite edges of the wheel. The branching leverD, shown in Fig. 1, may also be employed with the crown wheel C', and inthat case the rotation of the wheel C', will be reversed, when the shaftA is being rotated in the same direction as before.

This improved mechanical movement, is adapted for employment in Watchesand clocks, and in various registering machines requiring a greatlyreduced rate of movement, and several sets of toothed wheels withoperating eccentrics `and branching levers, may be employed upon thesame axis, as shown in Fig. 12, the second eccentric B being attached tothe side of the wheel C', `and made to operate a lever D2, which engageswith the teeth of the wheel C2, placed loosely either upon the shaft A,or upon the hub m of the wheel C', resulting in the greatly diminishedmovement of the wheel C2.

l claim as my invention- 1. lhe combination with the toothed wheel andthe eccentric, of the lever fitting the eccentric, and provided with thetwo diametrically arranged spurs which by engagement rst with the teethof one, and then the teeth of the other, of two opposite sides of thewheel, will cause the rotation of the said wheel, substantially asdescribed.

2. The combination with the toothed wheel, ot the eccentric, and thecompound engaging lever fitting the eccentric, and having spurs adaptedto engage alternately with the teeth at the opposite edges of the wheel,substantially as described.

3. The combination with the toothed wheel, and the eccentric, of theengaging lever titting the eccentric, and having forked engagingspursadapted to engage alternately with the points, and the sides of theteeth, at the opposite edges ot thewheel, substantially as described.

NOWMAN M. SAATI.

Vitnesses:

SOCRATES SCHOLFIELD, JAMES W. BEUMAN.'

